The Croyland or Crowland Chronicle is an important primary source for English medieval history, particularly the late 15th century. It is named for its place of origin, the Benedictine Abbey of Croyland or Crowland, in Lincolnshire, England. It was formerly also known as the Chronicle of Ingulf or Ingulphus after its supposed original compiler, the 11th-century abbot Ingulf. As that section of the text is now known to have been a later forgery, its author is instead known as Pseudo-Ingulf. The validity of the source itself has been questioned, partially due to the unknown identity of the original author, and gaps in all continuations of the text. There has also been substantially little effort made to find and translate the original manuscript.